---
product_id: 52916326
title: "Caleffi 1/2\" 3 Bar Relief Safety Valve"
brand: "caleffi"
price: "£18.69"
currency: GBP
in_stock: true
category: "Caleffi"
url: https://www.desertcart.co.uk/products/52916326-caleffi-1-2-3-bar-relief-safety-valve
store_origin: GB
region: United Kingdom
---

# 1/2" BSP Female Thread 3 Bar Pressure Rating 5-110°C Temperature Range Caleffi 1/2" 3 Bar Relief Safety Valve

**Brand:** caleffi
**Price:** £18.69
**Availability:** ✅ In Stock

## Summary

> ⚙️ Stay ahead of pressure—secure your system with Caleffi’s precision valve!

## Quick Answers

- **What is this?** Caleffi 1/2" 3 Bar Relief Safety Valve by caleffi
- **How much does it cost?** £18.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/52916326-caleffi-1-2-3-bar-relief-safety-valve)

## Best For

- caleffi enthusiasts

## Why This Product

- Trusted caleffi brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable Build Quality:** Crafted from premium brass and stainless steel for long-lasting corrosion resistance and strength.
- • **Universal Compatibility:** Standard 1/2" BSP female threading fits seamlessly into most plumbing setups for hassle-free installation.
- • **Trusted Industry Standard:** Backed by Caleffi’s reputation and a solid 4.3-star rating, join thousands of pros who rely on it daily.
- • **Precision Pressure Control:** Engineered to reliably release pressure at 3 Bar, ensuring system safety without compromise.
- • **Robust Temperature Tolerance:** Operates flawlessly across a wide 5-110°C range, perfect for diverse heating systems.

## Overview

The Caleffi 1/2" 3 Bar Relief Safety Valve is a high-quality plumbing component designed to protect heating systems by safely releasing excess pressure at 3 Bar. Featuring durable brass and stainless steel construction, it supports temperatures from 5 to 110°C and fits standard 1/2" BSP female connections, making it a reliable choice for professional-grade installations.

## Description

Ordinary safety valve certified. Female - female connections. Opening overpressure 20%. Closing gap 20%. PN 10. Temperature range: 5 ÷ 110 ° C. Settings: 2,5 - 3 - 3,5 - 4 - 5 - 6 - 7 - 8 bar. 2 bar only 3/4 ".

## Features

- 311430 Ordinary safety valve, connections FF 1/2 "3 BAR CALEFFI

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FG0FE1O |
| Best Sellers Rank | 488,930 in DIY & Tools ( See Top 100 in DIY & Tools ) 4,070 in Central Heating System Accessories |
| Brand | Caleffi |
| Country of Origin | United Kingdom |
| Customer Reviews | 4.5 out of 5 stars 8 Reviews |
| Global Trade Identification Number | 08016615003529 |
| Item Dimensions | 10 x 20 x 34 centimetres |
| Item Weight | 3 kg |
| Item dimensions L x W x H | 10 x 20 x 34 centimetres |
| Manufacturer | CALEFFI |
| Material | Brass , Stainless Steel |
| Maximum Pressure | 3 Bars |
| Maximum operating pressure | 3 Bars |
| Model Number | 311430 |
| Number of Ports | 2 |
| Number of ports | 2 |
| Outlet Connection Type | BSPT |
| Outlet connection type | BSPT |
| Part Number | 311430 |
| Valve Type | Pressure Relief Valve |

## Product Details

- **Brand:** Caleffi
- **Global Trade Identification Number:** 08016615003529
- **Item dimensions L x W x H:** 10 x 20 x 34 centimetres
- **Manufacturer:** CALEFFI
- **Material:** Brass, Stainless Steel
- **Maximum operating pressure:** 3 Bars
- **Number of ports:** 2
- **Outlet connection type:** BSPT

## Images

![Caleffi 1/2" 3 Bar Relief Safety Valve - Image 1](https://m.media-amazon.com/images/I/51fKEBKcRML.jpg)
![Caleffi 1/2" 3 Bar Relief Safety Valve - Image 2](https://m.media-amazon.com/images/I/41HbalNkPcL.jpg)
![Caleffi 1/2" 3 Bar Relief Safety Valve - Image 3](https://m.media-amazon.com/images/I/41AcAFIN1JL.jpg)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-28*